Rotational and gas temperatures of molecular deuterium in a hollow cathode glow discharge

We report the results of optical emission spectroscopy measurements of rotational and translational (gas) temperature of deuterium molecules. The light source was a low-voltage high-pressure hollow cathode (HC) glow discharge with titanium cathode operated in deuterium. The rotational temperature of...

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Bibliographic Details
Published inJournal of Research in Physics Vol. 38; no. 1; pp. 11 - 22
Main Authors Majstorovic, G Lj, Sisovic, N M
Format Journal Article
LanguageEnglish
Published Novi Sad De Gruyter Open 01.12.2015
De Gruyter Poland
Subjects
deuterium molecule
hydrogen molecule
Optical emission spectroscopy
rotational temperature measurement
translational temperature evaluation
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Summary:We report the results of optical emission spectroscopy measurements of rotational and translational (gas) temperature of deuterium molecules. The light source was a low-voltage high-pressure hollow cathode (HC) glow discharge with titanium cathode operated in deuterium. The rotational temperature of excited electronic states of D was determined from the intensity distribution in the rotational structure of Q-branches of the two Fulcher- diagonal bands: [ ′ = ″ = 2] and [ = ″ = 3]. The population of the excited energy levels, determined from relative line intensities, was used to derive the radial distributions of the temperature of the excited and the ground state of the deuterium molecule.
ISSN:2217-933X
1450-7404
2217-933X
DOI:10.1515/jrp-2015-0002